| Issue |
100012
|
| Summary |
[HLSL] Uninitialized value analysis for `out` parameters
|
| Labels |
new issue,
HLSL
|
| Assignees |
|
| Reporter |
llvm-beanz
|
HLSL `out` parameters are uninitialized at the entry of a function and need to be treated as uninitialized values during the uninitialized value analysis for `-Wuninitialized`.
This was partially implemented in DXC (https://github.com/microsoft/DirectXShaderCompiler/pull/5047), but due to incomplete AST representations it caused a lot of problems in DXC. The base implementation in DXC may cover all cases for HLSL in Clang, so it can be the basis of the starting implementation.
### Acceptance Criteria
* -Wuninitialized treats HLSL `out` parameters as uninitialized
* Sufficient test cases to cover uninitialized value warnings for `out` parameters
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